x402-fh — API catalog

Heuristic on-chain token safety check

Screen a wallet/contract address for risk

Fuzzy-screen one name against OFAC SDN + Consolidated

Screen up to 25 names in one call

Full OFAC dossier for one entity

Maritime screening: vessels by name, call sign, IMO, flag

Recent list changes (adds/removals/modifications)

Deliverability-signals check for one email address

Domain registration card — read from the registry on demand

Domain registration card (RDAP) + inline DNS summary

Multi-record DNS summary over DoH (ALWAYS live)

Screen a URL for phishing / malicious signals

Validate & normalize one phone number (E.164, line type, verdict)

Validate up to 25 numbers in one call

Indicative read-only swap quote from a UniswapV2 pool

Chainlink native-token USD prices (ETH/BNB/POL)

Cheapest chain right now — all-in USD ranking

Dollar cost of a specific transaction

Base-fee trajectory & congestion (wait-or-send)

EIP-4844 blob-gas market (Ethereum only)

Current gas market for one chain (bid-ready fees)

Cross-convert two registry assets via their USD oracle feeds

Live oracle spot price for a pair

Oracle price history (feed rounds) for a pair

Mixed batch of up to 25 names/addresses in one call

Forward-resolve an ENS name to an ETH address

Reverse-resolve an address to its primary ENS name (spoof-safe)

Read arbitrary ENS text records

Full identity card: multichain addresses + texts + contenthash + avatar

Avatar record fully dereferenced to an image URL

Ranked live RPC endpoints for one chain

Full canonical record for one chain, probe-annotated

Ready-to-submit EIP-3085 wallet_addEthereumChain object

Find chains by name / shortName / currency symbol

All L2s of a parent chain, with stack + bridges

Up to 50 chain records in one call

Ranked company search by name or ticker

Company profile from SEC EDGAR (identity, industry, HQ, filing cadence)

As-reported financial highlights from SEC XBRL, pinned to one period

Fetch a company's 10-K, parsed into clean sections

Fetch a company's 10-Q, parsed into clean sections

Fetch a company's 8-K, parsed into clean sections

Latest insider trades across the whole market

Full insider-trade history for one company

Insider sentiment for one company, precomputed

One insider's trades across every company they file for

Companies where several insiders are buying at once

Resolve a manager name to filer CIK(s)

Quarter-over-quarter portfolio diff

Full normalized 13F portfolio for one manager

Every 13F filer holding a security (inverted index)

Aggregate institutional flow for one security, QoQ

Largest 13F managers for a quarter

Companies currently in registration

Recently priced IPOs with parsed 424(b) terms

Imminent listings (inferred from filing signals)

Full offering timeline for one issuer

Registration withdrawals (Form RW)

All rates from the most recent ECB fixing

Single cross-rate between two currencies

Convert an amount at an ECB fixing

Full rate snapshot on a historical date

Per-pair time series with summary stats

Is the market open on a date?

Next open session on or after a date

Open sessions within a date range

T+N settlement date

All holidays for a calendar-year

Validate an IBAN

Decode a valid IBAN

Format an IBAN (electronic + paper)

Build an IBAN from country + BBAN

Current time in a zone

UTC offset + DST at an instant

Convert a wall-clock time between zones

Is an instant within local business hours?

Current conditions for a coordinate or city

Hourly forecast for a coordinate or city

Active severe-weather alerts (US coverage)

Newest headlines from the pile, filterable by category/source/lang

Top AI News — HIGH-SIGNAL AI headlines only (releases, security, agents, labs, law)

Top Crypto/NFT News — HIGH-SIGNAL only (hacks, launches, drops, regulation, deals)

Keyword search over the multi-day archive (AND terms + quoted phrase)

Volume + average sentiment over time — AND the matched articles themselves

Topic brief — the top stories of the last hours, ranked, with what moved and who covered it

Up to 10 headlines / ai / crypto / search requests in ONE paid call

Web page → clean markdown (headless-browser rendered)

Web page → PNG screenshot (headless-browser rendered)

Any PDF → one clean plain-text string

POST a PDF (raw bytes or JSON {url|base64}) → plain text

Any PDF → structured JSON (per-page text + metadata)

POST a PDF (raw bytes or JSON {url|base64}) → structured JSON

Any image → transcribed text (OCR) or description

POST an image (raw bytes or JSON {url|base64}) → text

Find a collection's contract by name — ALWAYS LIVE entry point

Collection identity card (cached ≤24h)

Deterministic scam checklist with verdict + evidence (cached ≤24h)

Single-asset health: metadata, owner, durability, image (cached ≤24h)

Does this wallet hold this NFT? ALWAYS LIVE

Collection stats: supply, owners, concentration, floor (cached ≤24h)

Wallet NFT portfolio with spam flags (cached ≤24h)

Wallet portfolio rolled up per collection (cached ≤24h)

How much of this wallet's NFT holdings is junk/copymint (cached ≤24h)

Per-token trait rarity + rarest trait (cached ≤24h)

Collection trait distribution table (cached ≤24h)

Recent sales, normalized + summarized (cached ≤24h)

One token's sale history with timestamps (cached ≤24h)

Provenance: owners, mint, full transfer chain, sale history (cached ≤24h)

Wash-trade heuristics over recent sales — verdict + evidence

Per-token wash-trade heuristics — verdict + evidence

Realtime collection pulse with cursor deltas — ALWAYS LIVE

Synthesize one preset sound → base64 WAV

Exact-parameter synthesis from a posted param block

N reproducible variations of a preset in one call

Perturb a known-good seed's sound (classic sfxr mutate)

Semantic icon search across all sets

One icon, render-ready

Multi-icon bundle in one call

Icon set for a described UI

Get a species' full generation-aware learnset

Get one Pokémon species

List or search Pokémon

Get one block

List or search blocks

Get one item

List or search items

Search blocks and items